Free Image Compressor and Converter Online

Why image size matters

Pictures are usually the heaviest part of a web page. A few big photos can make a page slow, especially on a phone with a weak connection. Slow pages lose visitors and can hurt your search results. Making images smaller is often the quickest way to make a website faster.

This tool shrinks your images in your browser. You choose the format, the size and the quality, and you see the old and new file size right away.

How to use the image compressor

Press "Choose images" or drop your files into the box.
Pick the format. WebP is a good choice for most websites.
Pick a maximum width. For most pages, 1200 to 1920 pixels is enough.
Move the quality slider. Around 80 is a good start for photos.
Check the result, then press "Download" next to each image.

JPG, PNG or WebP?

WebP: small files, good quality, works in all modern browsers. A good default for websites.
JPG: works everywhere. Good for photos. No see-through background.
PNG: sharp edges and see-through background, good for logos and screenshots. Files are bigger, and the quality slider does not change them.

Tips for faster images

Resize before you upload. A picture that shows 600 pixels wide on your page does not need to be 4000 pixels wide.
Use descriptive file names, such as red-leather-sofa.webp, not IMG_4021.
Add alt text to every image on your website.
Keep the original files in a safe place. Compression removes some detail and you cannot bring it back.
Use lazy loading for images lower on the page.

Where this tool helps most

Business websites: shrink banners, team photos and product pictures before you upload them to WordPress, so your pages open quickly on a phone.
Online shops: product pages with many pictures load much faster when each image is a few hundred kilobytes, not several megabytes.
Email and WhatsApp: send photos that are small enough to share without a long wait.
Forms and portals: many websites ask for a file under 1 MB or 2 MB. Lower the quality or the width until the size fits.
Social media posts: convert a PNG screenshot to JPG or WebP for a smaller upload.

Your photos stay private

All the work is done on your own device. We do not upload, store or look at your images. If you close the page, the images are gone from the tool.

Frequently asked questions

Are my photos uploaded to your server?

No. The images are processed inside your browser, on your own device. They are never sent to us or to any other server.

Which formats can I use?

You can add JPG, PNG, WebP and most other common image files. You can save the result as JPG, WebP or PNG.

Which format is best for a website?

WebP is usually the smallest at the same look, and works in all modern browsers. JPG is a safe choice for photos. PNG is best for logos, screenshots and pictures that need a see-through background, but the files are bigger.

What quality setting should I use?

A quality of 75 to 85 is a good start for photos. The file gets much smaller and most people cannot see the difference. Check the result before you use it.

Why did my PNG not get smaller?

PNG is a lossless format, so the quality slider does not change it. To make a PNG smaller, reduce the width, or save the image as WebP or JPG.

What does "maximum width" do?

It makes large photos smaller in pixels. A photo from a phone can be 4000 pixels wide, but most websites need only 1200 to 1600. Smaller pixel size means a much smaller file. Small images are never made bigger.

Will a see-through background stay see-through?

Yes for PNG and WebP. JPG cannot hold transparency, so the see-through parts become white.

Is there a limit on files?

You can add up to 30 images at a time. Very large photos can be slow on old phones, so add fewer at once if the page feels slow.

More free tools

Website Speed Test: see if heavy images slow down your page.

SEO Checker: check image alt text and other page basics.

WhatsApp Link and QR Code Generator: make a chat link and QR code.